On 18/2/23 11:33, Chengguang Xu wrote: > Hi Tejun, > > Sorry for delayed reply, I was on vacation last week. > > The problem still exists in current code of 4.16.0-rc2, > detail test information is below, if further info is needed please let me know. > > Thanks. > That's true, the issue Shaohua has fixed is double charge, but double stat issue still exists. Jiufei has posted a fix, which has already been tested by Bo Liu: [PATCH RESEND] blk-throttle: avoid double counted https://www.mail-archive.com/linux-block@xxxxxxxxxxxxxxx/msg18516.html Thanks, Joseph